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-rw-r--r--include/sound/seq_midi_event.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/sound/seq_midi_event.h b/include/sound/seq_midi_event.h
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+++ b/include/sound/seq_midi_event.h
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+#ifndef __SOUND_SEQ_MIDI_EVENT_H
+#define __SOUND_SEQ_MIDI_EVENT_H
+
+/*
+ * MIDI byte <-> sequencer event coder
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>,
+ * Jaroslav Kysela <perex@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "asequencer.h"
+
+#define MAX_MIDI_EVENT_BUF 256
+
+typedef struct snd_midi_event_t snd_midi_event_t;
+
+/* midi status */
+struct snd_midi_event_t {
+ int qlen; /* queue length */
+ int read; /* chars read */
+ int type; /* current event type */
+ unsigned char lastcmd; /* last command (for MIDI state handling) */
+ unsigned char nostat; /* no state flag */
+ int bufsize; /* allocated buffer size */
+ unsigned char *buf; /* input buffer */
+ spinlock_t lock;
+};
+
+int snd_midi_event_new(int bufsize, snd_midi_event_t **rdev);
+int snd_midi_event_resize_buffer(snd_midi_event_t *dev, int bufsize);
+void snd_midi_event_free(snd_midi_event_t *dev);
+void snd_midi_event_init(snd_midi_event_t *dev);
+void snd_midi_event_reset_encode(snd_midi_event_t *dev);
+void snd_midi_event_reset_decode(snd_midi_event_t *dev);
+void snd_midi_event_no_status(snd_midi_event_t *dev, int on);
+/* encode from byte stream - return number of written bytes if success */
+long snd_midi_event_encode(snd_midi_event_t *dev, unsigned char *buf, long count, snd_seq_event_t *ev);
+int snd_midi_event_encode_byte(snd_midi_event_t *dev, int c, snd_seq_event_t *ev);
+/* decode from event to bytes - return number of written bytes if success */
+long snd_midi_event_decode(snd_midi_event_t *dev, unsigned char *buf, long count, snd_seq_event_t *ev);
+
+#endif /* __SOUND_SEQ_MIDI_EVENT_H */